Thermometer-holding device for tanks and the like.



H. w. MAURER.

THERMOMETER HOLDING DEVICE FOR TANKS AND THE LIKE.

APPLICATION FILED JAN-20.1915.

Patented July 17, 1917.

i I E V I5 I 7 W w lv' h Afi- I INVE/I/TOR fleiz ymaarer HENRY W.MAURER, OF ROCHESTER, NEW YORK, ASSIGNOR T0 TAYLOR INSTRUMENT COMPANIES,OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YOlRK.

THEBMOMETER-HOLDING DEVICE FOR TANKS AND THE LIKE.

Specification of Letters Patent.

Patented July 1?, 1917.

marked thereon.

My invention has for its object to afford an improved construction foruse in connection with tanks, vats and the like to enable a thermometerto be readily inserted from the exterior to the inside of the tank, andto make provision for removing the thermometer when it is desired toclean the interior of the tank. A further purpose of the improvement isto employ a structure which does away with any projecting parts on theinterior of the casing when the thermometer is not in use, therebyfacilitating the cleaning operation and making a construction that ismore sanitary in every respect. To these and other ends the inventionconsists in certain improvements and combinations of parts all as willbe hereinafter more fully described, the novel features being pointedout in the claims at the end of the specification.

In the drawings:

Figure 1 is a sectional View showing the application of my improveddevice to the wall of a tank, and

Fig. 2 is a sectional View with the thermometer removed and the valve orplug inserted.

Similar reference characters throughout the several figures indicate thesame parts.

In the present embodiment of the construction there is employed a sleeve1 which is shown as applied to a double walled tank or vat, whichincludes the walls 2 and 3 arranged in spaced relation to each other forinsulation, but the invention is not confined in its application to thisparticular style of tank, as it may be applied with equal facility andused efliciently on a'single wall structure. The sleeve 1 is threadedboth interiorly and exteriorly at its outer end, as designated at 4 and5 respectively for a purpose that will be mentioned presently. At itsinner end, the sleeve 1 carries a flange 6 which forms a shoulder forengagement with the side or inner wall of the tank, to hold the sleevetightly against the wall, although any means may be employed at theinner end of the sleeve for accomplishing this end. The sleeve is heldin place by a securing nut 7 which engages the exteriorly threadedportion 4 at the outer end, and by contact with the outer surface of thetank, acts to draw the retaining flange 6 tightly against the innersurface and thus hold the sleeve in fixed position.

The sleeve is also provided at its in r end with an opening throughwhich t e thermometer casing 8 is inserted in the manner shown in Fig.1, and surrounding said opening is an inwardly projecting portion orshoulder 9 which is inclined at 10 to form a seat for collar 11 carriedby the thermometer casing. The collar 11 includesa surface 12 which isinclined correspondingly with the seat 10 and engages the same tightlywhen the thermometer is in operating position. The thermometer is heldin the position shown in Fig. 1 by means of a nut 13 which is looselyarranged on the neckll of the thermometer case, the nut 13 beingarranged to engage the interiorly threaded portion 5 of the bushing andto abut against a shoulder on the thermometer casing. It will be seenthat by this arrangement' the thern'iometer can be tightly securedwithin the sleeve and in a manner which effectually closes the openingthrough which it projects, and thus prevents the outflow of any liquidfrom the tank. When the thermometer is not in use, itmay be removed fromthe tank after it is emptied of its contents and in order to clean'thetank under such conditions I provide a supple mental means for closingthe opening in the sleeve before the cleaning liquid is poured 1n whileat the same time leaving a practically smooth inner surface on theinside of the tank.

To this end, I employ a plug member consisting preferably of a rod 15carrying a plug 16 to engage the seat 10. The rod 15 is also providedwith a threaded nut 17 adapted to engage the interiorly threaded portion5 of the sleeve, as shown in Fig. 2. When the thermometer is not in use,If. may be removed, and the plug membencanthen be positioned in themanner explained, and serves to close the opening in the sleeve, and Kprevent the contents the. tank from iun- I ning out.

and the thermometer casing-and serving to force the shoulder on thelatter into contact with the sleeve seat. v

2. The combination with a receptacle wall having an aperture, a sleevefitting the aperture having screw threads at its outer end and providedat its inner end' approximately in the plane of the inner surface of thereceptacle wall with an annular'seat, of a thermometer casing adapted toproject through the seat into the receptacle and having a shouldercooperating with said seat, a

nut engaging the threads of the sleeve and operating against thethermometer casing to force the shoulder thereon against the seat on thesleeve-and a closure for-the sleeve,

- cooperating when the thermometer is removed, comprising ahead portionfitting the seat and a nut cooperating with the threads of the sleeve toforce the head against the sleeve seat.

3. The combination with a receptacle wall provided with an'aperture, anda tubular sleeve fitted therein having a restricted inner; endportionforming a seat substantially in ""alinement with the innersurface of the receptacle wall, ofa thermometer casing extending throughthe sleeve and projecting through the seat into the receptacle having acollar slidingly fitting the sleeve and engaging the seat a securingdevice engaging the thermometer casing and sleeve and serving to forcethe collar on the former into contact with the sleeve seat, a closureinterchangeable with the thermometer casing sleeve and engage the seattherein, when the thermometer casing is removed, and means andengaglng'said closure to force it into contact with the sleeye seat.

HENRY W. MAURER.

Witnesses: I

H. E. SToNEBRAKER,

RUSSEL B. GRIFFITH.

with the outer end of the sleeve .also adapted to slidingly fit withinthe

